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参数资料
| 型号： | L7C174KMB25 |
| 厂商： | LOGIC DEVICES INC |
| 元件分类： | SRAM |
| 英文描述： | 8K X 8 CACHE TAG SRAM, 22 ns, CQCC32 |
| 封装： | CERAMIC, LCC-32 |
| 文件页数： | 2/8页 |
| 文件大小： | 60K |
| 代理商： | L7C174KMB25 |
DEVICES INCORPORATED
L7C174
8K x 8 Cache-Tag Static RAM
Special Architecture Static RAMs
03/26/1999–LDS.174-M
2
L7C174-
Symbol
Parameter
Test Condition
35
25
20
15
12
Unit
ICC1
VCC Current, Active
(Note 6)
90
115
140
165
195
mA
MAXIMUM RATINGS
Above which useful life may be impaired (Notes 1, 2)
WE
CE
OE
CLEAR
MATCH
I/O
FUNCTION
X
L
H
—
Reset all bits to low
X
H
X
H
High-Z
Deselect chip
HLH
H
L
DIN
No MATCH
HLH
H
DIN
MATCH
HL
L
H
DOUT
Read
LL
X
H
DIN
Write
X = Don't Care; L = VIL; H = VIH
TRUTH TABLE
L7C174
Symbol
Parameter
Test Condition
Min
Typ
Max Unit
VOH
Output High Voltage (Note 11)
VCC = 4.5 V, IOH = –4.0 mA (all except MATCH pin)
2.4
V
VOL
Output Low Voltage (Note 11)
IOL = 8.0 mA (all except MATCH pin)
0.4
V
IOL = 18.0 mA (MATCH pin)
0.4
V
VIH
Input High Voltage
2.2
VCC
V
+0.3
VIL
Input Low Voltage
(Note 3)
–3.0
0.8
V
IIX
Input Leakage Current
Ground
≤ VIN ≤ VCC
–10
+10
A
IOZ
Output Leakage Current
Ground
≤ VOUT ≤ VCC, OE = VCC (except MATCH pin)
–10
+10
A
ICC3
VCC Current, CMOS Standby
(Note 8)
100
500
A
ICC4
VCC Current, Data Retention
VCC = 3.0 V (Notes 9, 10)
10
200
A
CIN
Input Capacitance
Ambient Temp = 25°C, VCC = 5.0 V
5
pF
COUT
Output Capacitance
Test Frequency = 1 MHz (Note 10)
7pF
ELECTRICAL CHARACTERISTICS Over Operating Conditions (Note 5)
OPERATING CONDITIONS To meet specified electrical and switching characteristics
Mode
Temperature Range (Ambient)
Supply Voltage
Active Operation, Commercial
0°C to +70°C
4.5 V
≤ VCC ≤ 5.5 V
Active Operation, Industrial
–40°C to +85°C
4.5 V
≤ VCC ≤ 5.5 V
Active Operation, Military
–55°C to +125°C
4.5 V
≤ VCC ≤ 5.5 V
Data Retention, Commercial
0°C to +70°C
2.0 V
≤ VCC ≤ 5.5 V
Data Retention, Industrial
–40°C to +85°C
2.0 V
≤ VCC ≤ 5.5 V
Data Retention, Military
–55°C to +125°C
2.0 V
≤ VCC ≤ 5.5 V
Storage temperature ............................................. –65°C to +150°C
Operating ambient temperature ............................ –55°C to +125°C
VCC supply voltage with
respect to ground ............................................... –0.5 V to +7.0 V
Input signal with respect to ground ....................... –3.0 V to +7.0 V
Signal applied to high
impedance output ............................................... –3.0 V to +7.0 V
Output current into low outputs ............................................. 25 mA
Latchup current ................................................................. > 200 mA
OBSOLETE
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